Two recent studies in BMC Biology and Evolution raise important questions about a textbook case of frequency-dependent selection in scale-eating cichlid fishes. They also suggest a fascinating new line of research testing the effects of handed behavior on morphological asymmetry.
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机译：BMC Biology and Evolution的两项最新研究提出了有关食鳞丽鱼科鱼类中频率依赖选择的教科书案例的重要问题。他们还提出了一条有趣的新研究路线，以测试手部行为对形态不对称性的影响。
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